Can I run Romex through conduit?

Reply

  #1  
Old 03-05-14, 09:14 PM
Member
Thread Starter
Join Date: Aug 2012
Posts: 79
Can I run Romex through conduit?

I have some wiring running to a switch and lights that supposed to be run through conduit but currently has Romex running to it. My question is can I just pull that existing Romex through the conduit when I put the conduit in place (assuming I disconnect the Romex on one end and pull it through), or do I need to replace the Romex with two or three wire wiring?
 
Sponsored Links
  #2  
Old 03-05-14, 09:17 PM
Nashkat1's Avatar
Member
Join Date: Mar 2012
Location: USA
Posts: 8,470
Will the conduit be closed (run from one box to another) or will it be a sleeve (open on one end)?
 
  #3  
Old 03-05-14, 09:22 PM
Member
Thread Starter
Join Date: Aug 2012
Posts: 79
It would be closed, one box to another, e.g., from a porcelain light circuit box to a switch box. What's the difference between that versus being open on one end? Thanks.
 
  #4  
Old 03-05-14, 09:34 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 32,653
Best practice is to use individual conductors (THHN/THWN)in a closed system. Are you in Chicago? If so the inspector may not want to see cable.
 
  #5  
Old 03-06-14, 06:01 PM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: USA
Posts: 9,213
The NEC does not prohibit running NM cable (aka romex) in conduit, but like Ray said, best practice is to use individual conductors. Some AHJs, however, will not allow a cable assembly to be installed in conduit except for a short sleeve to protect the cable from damage.
 
  #6  
Old 03-06-14, 07:06 PM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 14,357
The conduit would need to be larger for the cable than for individual conductors.
 
  #7  
Old 03-06-14, 07:27 PM
Nashkat1's Avatar
Member
Join Date: Mar 2012
Location: USA
Posts: 8,470
What's the difference between that versus being open on one end?
Heat. Type NM is designed to be installed in an environment where the heat can get away from it.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'